fix: align puppeteer extend fn names

Author: patrickhulce

README.md

@@ -23,7 +23,7 @@ const browser = await puppeteer.launch()
 const page = await browser.newPage()
 
 // Grab ElementHandle for document, this convenience method added by pptr-testing-library/extend
-const $document = await page.document()
+const $document = await page.getDocument()
 
 // query methods are added to prototype of ElementHandle
 const $form = await document.getByTestId('my-form')

lib/extend.ts

@@ -4,14 +4,14 @@ import {extendObjectWithTestingUtils, getDocument} from '.'
 const Page = require('puppeteer/lib/Page.js') // tslint:disable-line
 const ElementHandle = require('puppeteer/lib/ElementHandle.js') // tslint:disable-line
 
-Page.prototype.document = getDocument
+Page.prototype.getDocument = getDocument
 
 extendObjectWithTestingUtils(ElementHandle.prototype)
 
 /* tslint:disable */
 declare module 'puppeteer' {
   interface Page {
-    document(): Promise<ElementHandle>
+    getDocument(): Promise<ElementHandle>
   }
 
   interface ElementHandle {

test/extend.test.ts

@@ -14,7 +14,7 @@ describe('lib/extend.ts', () => {
   })
 
   it('should extend puppeteer ElementHandle', async () => {
-    document = await page.document()
+    document = await page.getDocument()
     expect(typeof document.queryAllByAltText).toBe('function')
   })